摘要
以4年生文冠果树XanthocerassorbifoliumBunge为材料，研究了不同时期喷施不同浓度的蔗糖和硼酸溶液对文冠果开花座果以及结实的影响，以期得出最适喷施时期和喷施浓度，为提高文冠果产量提供技术依据。实验结果表明：（1）在花芽初萌期喷施蔗糖溶液可显著提高可孕花比例，单花序可孕花比例可达84．5％，单枝可孕花比例可达59％；喷施0．3％～0．5％的蔗糖溶液对提高单花序可孕花比例及座果率效果最为显著，过高浓度（1．5％）的蔗糖溶液会降低其座果率。（2）在盛花期喷施硼酸，座果率显著高于开花前和初花期喷施；0．05％～0．3％的硼溶液对文冠果座果率及果实品质都具有显著提高作用，其中0．2％浓度的硼酸溶液效果最好，结实率可达5．6％，相比于对照，高出47．4％。因此，在生产实际中，花芽初萌期可喷施0.3％～0．5％左右的蔗糖溶液以增加可孕花比例，同时还可在盛花期喷施0．2％的硼酸溶液以达到提高座果率和果实品质的目的。
Taking the four-year-old Xanthoceras sorbifolium Bunge as experimental materials, the effects of spraying sucrose and H3BO3 at different stages with different concentrations on the blossoming and fruiting ofXanthoceras sorbifolium Bunge was studied. In order to obtain the optimal spraying period and concentration and improve the yield and quality ofXanthoceras sorbifolium Bunge. The results show that spraying sucrose at the early sprouting period can significantly increase the proportion of fertile flowers. The proportion of single inflorescence can be up to 59%. And single branch reach up to 84.5%. Spraying sucrose solution concentration from 0.3% to 0.5% is the most significant for fertile flower proportion of single inflorescence and fruit set percentage. High concentration （1.5%） sucrose solution will reduce its fruit set percentage. Spraying boric acid solution at full-bloom stage, the fruit set percentage was significantly higher than that spraying early flowering stage and before flowering. Spraying 0.05% to 0.3% boric acid solution can significantly increase the fruit set percentage and improve the fruit quality. And 0.2% boric acid solution is the best. The seed setting rate can reach 5.6%. Compared to the controls, it＇s 47.4% higher. Therefore, in the actual production, sucrose solution concentration from 0.3% to 0.5% at early germinating stage increase the proportion of fertile flower. At the same time, spray 0.2% boric acid solution at full- bloom stage to increase the fruit set percentage and improve the quality purposes.
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2016年第8期20-26,共7页
Journal of Central South University of Forestry & Technology
基金
国家国际科技合作专项"高能效先进生物质原料林可持续经营技术合作研究"(2014DFA31140)
关键词
文冠果
花期
蔗糖
硼酸
可孕花比例
坐果率
果实品质
Xanthoceras sorbifolium Bunge
florescence
sucrose
H3BO3
proportion of fertile flower
fruit set percentage
fruit quality
